    FILENAME LAB2SE "&data3A.\LAB2SE.DAT" LRECL=50;
    *** LRECL includes 2 positions for CRLF, assuming use of PC SAS;          
                                                                                
    DATA LAB2SE;                                                                  
      INFILE LAB2SE MISSOVER;                                                    
                                                                                
      LENGTH                                                                    
        SEQN      7                                                             
        MXRSESSR  3                                                             
        MXRTIMO   3                                                             
        MXPRDAYS  8                                                             
        COR       8                                                             
        HORSI     8                                                             
        VDR       8                                                             
        VDRSI     8                                                             
        THR       8                                                             
        THRSI     8                                                             
        TMR       8                                                             
        TAR       8                                                             
      ;                                                                         
                                                                                
      FORMAT                                                                    
        HORSI    5.2                                                            
        VDR      6.1                                                            
        VDRSI    5.1                                                            
        THR      8.2                                                            
        THRSI    8.2                                                            
        TMR      8.1                                                            
        TAR      8.1                                                            
      ;                                                                         
                                                                                
     INPUT                                                                      
        SEQN     1-5                                                            
        MXRSESSR 6                                                              
        MXRTIMO  7-8                                                            
        MXPRDAYS 9-10                                                           
        COR      11-15                                                          
        HORSI    16-19                                                          
        VDR      20-23                                                          
        VDRSI    24-28                                                          
        THR      29-34                                                          
        THRSI    35-40                                                          
        TMR      41-44                                                          
        TAR      45-48                                                          
     ;                                                                          
                                                                                
      LABEL                                                                     
        SEQN     = "Sample person identification number"                        
        MXRSESSR = "Session for MEC examination"                                
        MXRTIMO  = "Date of repl. MEC exam time in: month"                      
        MXPRDAYS = "Number of days between exams"                               
        COR      = "Serum cotinine (ng/mL) RP"                                  
        HORSI    = "Serum homocysteine: SI (umol/L) RP"                         
        VDR      = "Serum vitamin D (ng/mL) - RP"                               
        VDRSI    = "Serum vitamin D: SI (nmol/L) - RP"                          
        THR      = "Serum TSH (uU/mL), replicate"                               
        THRSI    = "Serum TSH:  SI (mU/L), replicate"                           
        TMR      = "Serum antimicrosomal antibody (U/mL) RP"                    
        TAR      = "Serum ATA (U/mL), replicate"                                
      ;                                                                         
                                                                                
